B1158
Front Airbag Sensor LH Malfunction
B1158 is an OBD-II diagnostic trouble code meaning: Front Airbag Sensor LH Malfunction. Common causes: open or short circuit in the sensor wiring harness, oxidation or corrosion of contacts. Estimated repair cost: $56–167.
Symptoms
- The SRS malfunction indicator on the dashboard is on
- The airbag system may be disabled
- Inability to diagnose other SRS codes
Causes
- Open or short circuit in the sensor wiring harness
- Oxidation or corrosion of contacts
- Mechanical damage to the sensor (shock, vibration)
- Malfunction of the sensor itself
- Problems with the SRS control unit
How to Fix
- Conduct a visual inspection of the wiring harness and sensor contacts
- Check the resistance and continuity of the sensor circuit using a multimeter
- Test the sensor using a diagnostic scanner
- If necessary, replace the sensor or repair the wiring harness
- Reset SRS errors and check if code B1158 returns
Related codes
FAQ
What does the B1158 code mean?
B1158 is an OBD-II diagnostic trouble code that indicates: Front Airbag Sensor LH Malfunction
What causes a B1158 error code?
The most common causes of B1158 include: Open or short circuit in the sensor wiring harness; Oxidation or corrosion of contacts; Mechanical damage to the sensor (shock, vibration); Malfunction of the sensor itself.
How do I fix a B1158 diagnostic trouble code?
To fix B1158: Conduct a visual inspection of the wiring harness and sensor contacts. Check the resistance and continuity of the sensor circuit using a multimeter. Test the sensor using a diagnostic scanner. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1158?
Do not drive — repair immediately
How much does it cost to fix B1158?
The estimated repair cost for B1158 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat